On February 7th, 2014, Masahiro Sakurai posted this image on Miiverse and confirmed that Mother Brain would appear as an Assist Trophy in the fourth Smash Bros. game. Though the screenshot only showed her on the Wii U, she is featured on the 3DS version as well. Her appearance is taken from Zero Mission , where she appears onstage in her Control Capsule with Rinkas flying around. She uses the Laser Brain Attack from Super Metroid , possessing a quicker firing rate but shorter range. Use of the Attack causes the Capsule to break. Mother Brain charges and fires the beam (which retains its sound effect from Super Metroid ) twice, aiming it toward the ground. Mother Brain can also turn in her capsule to aim at opponents accordingly. Before she disappears, she seems to bounce, or "nod" at the summoning character. Mother Brain can be killed, with her trophy description quipping that it will not trigger a countdown as tradition.